vertical-real-estate

# Vertical: residential real estate — don't spec it naively Real estate looks like generic CRUD (a listing is a record, a lead is a contact, a deal is a checklist). It isn't. The domain has hard-won structure — MLS quirks, status lifecycles, months-long sales cycles, agent-vs-brokerage data boundaries — that a naive build ignores and then rebuilds. This skill front-loads that structure so the spec is right the first time. Incumbents to know (and what they own): **Lone Wolf / Propertybase** (brokerage CRM + back office), **Follow Up Boss** (lead-to-close CRM, the nurture gold standard), **CINC** (lead-gen + CRM), **Top Producer** (legacy CRM), **kvCORE / BoldTrail** (all-in-one platform). They are expensive, broad, and switching-cost-heavy — which is why the wedge matters (see per-product). ## 1. Domain vocabulary (use these terms in the spec) - **MLS** (Multiple Listing Service) — regional database of listings; there are ~500+ MLSs in the US, each its own system, login, and field set. There is no single national MLS. - **IDX** (Internet Data Exchange) �� the rules + feed that let a brokerage display *other* brokers' MLS listings on its own site. Governed by per-MLS display/redistribution rules. - **RESO** — the standards body. **RESO Web API** (modern REST/OData feed) and **RESO Data Dictionary** (canonical field names) are the standard — but adoption and cleanliness vary per MLS. "RESO-compliant" still means per-MLS quirks. - **Listing status** — lifecycle, not a...